Disappointing. The book is labelled as (among other things) a collection of Asimov’s fantasy works. Nearly all the fiction is selected George & Azazel stories, which were honestly not very good, and were dressed up to pass as science fiction. Barely.
Of the other fictional pieces, two were clearly fantasy, and kind of cute, but the other was neither fantasy or science fiction – there were no fantastical elements, only a deluded character and a poorly set-up punchline.
The non-fiction bits were a little better, but still off putting in that we had to listen to Asimov contradict himself regarding what was fantasy and what was science fiction and how fast 7-league boots go.
Throw in some bad copy editing, and we’re done. A very disappointing work, made the moreso when contrasted with much of Asimov’s other publications.